scholarly journals Digiquartz pressure transducer calibration test results

1980 ◽  
Author(s):  
F. L. Bentzen
Keyword(s):  
Pressure Transducer ◽  
Test Results ◽  
Calibration Test ◽  
Transducer Calibration

scholarly journals 5-Axis Force Calibration Test Results for the JAXA 60cm MSBS

2004 ◽  
Vol 52 (606) ◽  
pp. 309-315 ◽  
Author(s):  
Hideo Sawada ◽  
Tetsuya Kunimasu ◽  
Shinichi Suda ◽  
Yasushi Mizoguti ◽  
Takumi Okada
Keyword(s):  
Test Results ◽  
Calibration Test ◽  
Force Calibration

Towards Integrated Sensors for Environments with Temperatures up to 600 °C

2016 ◽  
Vol 2016 (HiTEC) ◽  
pp. 000051-000055 ◽  
Author(s):  
Ayden Maralani ◽  
Levent Beker ◽  
Albert P. Pisano
Keyword(s):  
Performance Evaluation ◽  
High Temperatures ◽  
Pressure Transducer ◽  
Harsh Environments ◽  
Test Results ◽  
Pressure Sensing ◽  
Sensing Systems ◽  
Interface Circuitry ◽  
Circular Diaphragm ◽  
Type Pressure

Abstract The main objective is to develop sensing systems by integrating transducers such as pressure sensing elements with the interface circuitry in one package that can withstand harsh environments, particularly high temperatures up to 600 °C. To achieve that, both pressure transducer and interface circuitry are individually required to operate and survive up to 600 °C with acceptable degrees of reliability. This paper reports performance evaluation of fabricated 4H-SiC JFETs along with differential pairs for use in the interface circuitry. The test results are very promising and show stable performances from 25 °C up to 600 °C. Moreover, design, fabrication, and early test of a SiC based circular diaphragm type pressure transducer is also reported.

High-precision in situ measurement of speed of sound in hydraulic systems

2019 ◽  
Vol 234 (3) ◽  
pp. 299-313
Author(s):  
Nigel Johnston
Keyword(s):  
High Precision ◽  
Speed Of Sound ◽  
Pressure Transducer ◽  
In Situ Measurement ◽  
Frequency Domain Method ◽  
Hydraulic Systems ◽  
Mean Flow ◽  
Transducer Calibration ◽  
Mean Flow Velocity

An existing ISO standard frequency-domain method for measurement of speed of sound in a hydraulic pipeline is enhanced and extended in this article to include in situ measurement of pressure transducer calibration factors. Transducer mounting stresses are shown to cause variations in the calibration factors, and the proposed method can be used to eliminate these uncertainties, consequently improving the accuracy of the speed of sound. 95% confidence ranges in the speed of sound of less than ±0.1% have been achieved, and such high precision cannot be achieved by other practical methods. The method can also been extended to estimate viscosity and mean flow velocity, but accuracy is less good. Novel time-domain versions of the method are introduced. These may be valuable for real-time monitoring, and changes in speed of sound or calibration factor can be tracked with minimal delay. Some examples showing the effect of sudden aeration are presented; a sudden drop in speed of sound is apparent.

A Computer-Controlled Pressure Standard

1999 ◽  
Vol 121 (1) ◽  
pp. 210-212
Author(s):  
Othon K. Rediniotis
Keyword(s):  
Pressure Transducer ◽  
Pressure Range ◽  
High Accuracy ◽  
Wind Tunnel Testing ◽  
Dual Use ◽  
Pressure Source ◽  
Subsonic Wind Tunnel ◽  
Pressure Standard ◽  
Computer Controlled ◽  
Transducer Calibration

The operating principles, as well as the technical aspects of the implementation of a new computer-controlled pressure standard are presented. The instrument can have dual use: either as a pressure source or as a pressure sensor. The device is intended mostly for use in problems where small differential pressures are of interest, i. e., 0–2.5 KPa and high accuracy is desired. Such a pressure range encompasses, for example, most of the pressure measurement applications in subsonic wind-tunnel testing. The device interfaces to a PC and is ideal for fully-automated pressure transducer calibration applications. The accuracy of the pressures produced or measured by the device is 0.08 percent F. S. (Full Scale).

Miniature Corrugated Diaphragm for Fiber-Optic-Linked Pressure Sensing (FOLPS)

2003 ◽  
Author(s):  
Hong-Seok Noh ◽  
Sangkyung Kim ◽  
Peter J. Hesketh ◽  
Hua Mao ◽  
Lid Wong
Keyword(s):  
Stainless Steel ◽  
Pressure Transducer ◽  
Biomedical Applications ◽  
Fiber Optic ◽  
Optical Sensing ◽  
Low Pressure ◽  
Test Results ◽  
Steel Tubes ◽  
Pressure Sensing ◽  
Reflective Surface

This paper presents miniature (diameter less than 1.5 mm) corrugated parylene/Cr/parylene diaphragms that provide ultra sensitive load-deflection (±100 μm for ±1kPa) and reflective surface for optical sensing. The design, fabrication, and test results of the ultra low pressure transducer for biomedical applications are reported here. The diaphragms have been attached to stainless steel tubes that are suitable for most endoscopes.

scholarly journals Thermal fuels behavior program test results report. Power-coolant- mismatch series power calibration test

1975 ◽  
Author(s):  
R.K. McCardell ◽  
G.W. Cawood ◽  
C.M. Allison ◽  
C.G. Frederick
Keyword(s):  
Test Results ◽  
Calibration Test ◽  
Program Test
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